Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/15584
Title: Distribuição espacial da precipitação e da erosividade da chuva mensal e anual no Estado do Espírito Santo
Other Titles: Spatial distribution of monthly and annual rainfall and rainfall erosivity in Espirito Santo, Brazil
Keywords: Precipitação pluvial – Erosividade – Mapeamento
Precipitação pluvial – Espírito Santo – Análise espacial
Análise de séries temporais
Geologia – Métodos estatísticos
Rainfall erosive – Mapping
Rainfall erosive – State of Espírito Santo, Brazil – Spatial analysis
Time-series analysis
Geology – Statistical methods
Issue Date: Nov-2012
Publisher: Sociedade Brasileira de Ciência do Solo
Citation: MELLO, C. R. et al. Distribuição espacial da precipitação e da erosividade da chuva mensal e anual no Estado do Espírito Santo. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 36, n. 6, p. 1878-1891, nov./dez. 2012.
Abstract: The mapping of rainfall erosivity and rainfall is a practical and indispensable tool to plan the soil and water management on a regional scale, such as countries, states or basins. The purpose of this study was to analyze the spatial continuity of erosive potential of rainfall and rainfall, considering monthly and annual mean values, and to map them for the State of Espírito Santo, Brazil, providing basic information for the planning of sustainable soil use and management. To this end, 129 weather stations were used and monthly values of rainfall erosivity were calculated using Fournier's equations. A strong spatial dependency structure was observed, especially for rainfall erosivity, with data fitting to the exponential semivariogram model. For rainfall, the spatial dependence degree values were slightly lower than for rainfall erosivity, however, a moderate to strong spatial dependence degree was obtained. The rainfall erosivity potential of the Rio Doce region was classified as "strong" and "very strong", varying from 7,000 to 11,460 MJ mm ha-1 h-1 year-1. In this region, the natural vulnerability to water erosion of soils with a dissected relief, low natural fertility and a pronounced water deficit hampering vegetation establishment, is higher.
URI: repositorio.ufla.br/jspui/handle/1/15584
Appears in Collections:DEG - Artigos publicados em periódicos

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